6394255012 has 6 divisors (see below), whose sum is σ = 11189946278. Its totient is φ = 3197127504.

The previous prime is 6394255009. The next prime is 6394255031. The reversal of 6394255012 is 2105524936.

It can be written as a sum of positive squares in only one way, i.e., 4948278336 + 1445976676 = 70344^2 + 38026^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799281873 + ... + 799281880.

Almost surely, 2^6394255012 is an apocalyptic number.

It is an amenable number.

6394255012 is a deficient number, since it is larger than the sum of its proper divisors (4795691266).

6394255012 is a wasteful number, since it uses less digits than its factorization.

6394255012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598563757 (or 1598563755 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 6394255012 is about 79964.0857635476. The cubic root of 6394255012 is about 1856.0798281317.

Adding to 6394255012 its reverse (2105524936), we get a palindrome (8499779948).

The spelling of 6394255012 in words is "six billion, three hundred ninety-four million, two hundred fifty-five thousand, twelve".